AD 2019-18-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Bombardier | DHC-8-400 | Airworthiness Directives; De Havilland Aircraft of Canada Limited (Type Certificate Previously Held by Bombardier, Inc.) Airplanes |
| aircraft | Bombardier | Various | Airworthiness Directives; De Havilland Aircraft of Canada Limited (Type Certificate Previously Held by Bombardier, Inc.) Airplanes |
| aircraft | de Havilland | Various | Airworthiness Directives; De Havilland Aircraft of Canada Limited (Type Certificate Previously Held by Bombardier, Inc.) Airplanes |
Unsafe Condition
excessive free play at the lock link of the nose landing gear (NLG) locking mechanism, and consequent inability to fully retract or deploy the NLG, which could result in collapse of the NLG and affect the safe landing of the airplane.
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Required Actions
inspect the bushings and the lower lock link of the NLG for discrepancies, and corrective actions if necessary, including replacement of the lower lock link of the NLG, which terminates the repetitive inspections.
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Compliance Time
Before further flight
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Affected Aircraft
De Havilland Aircraft of Canada Limited (Type Certificate Previously Held by Bombardier, Inc.) Model DHC-8-400 series airplanes, with a lower lock link of the NLG, which can be serviced by accomplishing UTC Aerospace Systems Vendor Service Bulletin (VSB) 47300-32-138 R3, as specified in Bombardier Service Bulletin 84-32-154, Revision A, dated November 21, 2018.
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Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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